The Met Office has issued a warning of ice for the Western Isles, valid from 8pm tonight until 9am tomorrow (Wednesday).
Wintry showers will become confined to the Northern Isles and northern Scotland overnight, with icy patches forming.
There is a chance of difficult driving conditions on untreated roads and slippery conditions on pavements.
A further 1-2 cm of snow is likely locally, mainly across higher ground of the north, with locally 5 cm over higher parts of Sutherland and Wester Ross.
Following wintry showers, temperatures are expected to fall below freezing widely overnight, with ice forming on untreated surfaces.